[VOL-1386]  This commit add "dep" as the package management tool
for voltha-go.

Change-Id: I52bc4911dd00a441756ec7c30f46d45091f3f90e
diff --git a/vendor/go.etcd.io/etcd/clientv3/options.go b/vendor/go.etcd.io/etcd/clientv3/options.go
new file mode 100644
index 0000000..fa25811
--- /dev/null
+++ b/vendor/go.etcd.io/etcd/clientv3/options.go
@@ -0,0 +1,49 @@
+// Copyright 2017 The etcd Authors
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package clientv3
+
+import (
+	"math"
+
+	"google.golang.org/grpc"
+)
+
+var (
+	// Disable gRPC internal retrial logic
+	// TODO: enable when gRPC retry is stable (FailFast=false)
+	// Reference:
+	//  - https://github.com/grpc/grpc-go/issues/1532
+	//  - https://github.com/grpc/proposal/blob/master/A6-client-retries.md
+	defaultFailFast = grpc.FailFast(true)
+
+	// client-side request send limit, gRPC default is math.MaxInt32
+	// Make sure that "client-side send limit < server-side default send/recv limit"
+	// Same value as "embed.DefaultMaxRequestBytes" plus gRPC overhead bytes
+	defaultMaxCallSendMsgSize = grpc.MaxCallSendMsgSize(2 * 1024 * 1024)
+
+	// client-side response receive limit, gRPC default is 4MB
+	// Make sure that "client-side receive limit >= server-side default send/recv limit"
+	// because range response can easily exceed request send limits
+	// Default to math.MaxInt32; writes exceeding server-side send limit fails anyway
+	defaultMaxCallRecvMsgSize = grpc.MaxCallRecvMsgSize(math.MaxInt32)
+)
+
+// defaultCallOpts defines a list of default "gRPC.CallOption".
+// Some options are exposed to "clientv3.Config".
+// Defaults will be overridden by the settings in "clientv3.Config".
+var defaultCallOpts = []grpc.CallOption{defaultFailFast, defaultMaxCallSendMsgSize, defaultMaxCallRecvMsgSize}
+
+// MaxLeaseTTL is the maximum lease TTL value
+const MaxLeaseTTL = 9000000000